SophiaPretty

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Category > Computer Science Posted 13 Dec 2017 My Price 10.00

star-schema data mode What is the real purpose

Hey how are you? these are some review questions. i need answers, and it looks like same in final. Thank you

What is a star-schema data model? What is the real purpose of it? Briefly explain.

 

 

What are the minimum conditions to be a distributed database (DDB)?

 

 

List at least four advantages and disadvantages of distributed database management systems.

 

 

Define the following big data concepts. Volume, Velocity, Variety

 

 

What is Hadoop and MapReduce? Explain them with your own words and understanding. Support your explanation with a real-world example.

 

 

Consider the following graph data model which has three primary components: Dish, Ingredient and Allergen. A Dish is comprised of at least one ingredient and has one property, “name.” An Ingredient can contain any number of allergens and has one property, “name.” An Allergen has one property, “name.” An example database is shown below.

In this data model, write a Cypher query

 

 

To find all dishes that contain at least three different allergens.

 

 

 

 

 
 

 

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SophiaPretty
(5)
Status NEW Posted 13 Dec 2017 06:12 AM My Price 10.00

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